324 



THE INDIA RUBBER WORLD 



[July i, 1902. 



bulbs equally as good as the imported ones. Three different 

 manufacturers in this country have given up the job. We have 

 just within the last 30 days succeeded in getting a bulb of 

 American make, which in our tests answer the purpose, and by 

 the next automobile shows, held in the coming winter, we 

 shall have a large and varied assortment of horns in different 

 sizes for the market." (The Badger Brass Manufacturing Co., 

 Kenosha, Wisconsin.] 



SOMETHING NEW IN CRUTCH TIPS. 

 Several cuts shown on this page illustrate various applica- 

 tions of a new feature in the construction of crutch tips, on 

 the principle of adding to their 

 durability through the use of a fric- 

 tion plug. This plug is made of 

 cotton duck or fabric, and cut in such 

 a way that the wear always comes on 

 the end of the thread, thus avoid- 

 ing any possibility of unraveling. 

 The fabric is thoroughly coated or 

 frictioned with rubber, so that it 

 adheres firmly and becomes a part 

 of the tip when molded. As is well 

 known such fabric is more durable 

 as a wearing surface than rubber, 

 and consequently, by the use of this 

 friction plug, the wearing quality of 

 the tip is greatly increased. This 

 idea in crutch tips is covered by 

 patents granted in March last, since 

 which time the friction plug has 

 been adapted to practically all the 

 various styles of rubber crutch 

 tips, and with a marked degree of 

 satisfaction to the user. While 

 the duck is used for friction pur- 

 poses, the remainder of the tip 

 requires to be made of good quality 

 rubber, in order to get the benefit of 

 the elasticity and prove soft and 

 easy to the wearer. The retail 

 price of crutch tips made with the 

 friction plug is somewhat higher 

 than other tips, but, considering the 

 increased durability, the new style 

 may prove cheaper in the end. Fig. 

 1 illustrates the solid screw crutch 

 tips with friction plug, which are 

 made in three sizes. Fig. 2 shows 

 the socket friction plug crutch tip, 

 which is made in five sizes, and 

 Fig. 3 a sectional view of the inter- 

 ior construction. Fig. 4 shows the 

 Whittemore style of friction plug 

 crutch tip, made in four sizes. [The 

 Elastic Tip Co., No. 370 Atlantic 

 avenue, Boston, Massachusetts 

 = = There have been described of 

 late in this paper, rubber heels, horse 

 shoe pads, and even vehicle tires, 

 involving similar uses of friction 

 fabrics, showing the popularity of 

 ^"'■*- such materials for resisting wear. 



RUBBER HAND ROLLERS. 

 Wherever rubber goods are made up — that is, with differ- 

 ent parts either of rubber alone or fabric and rubber — the hand 



roller is found to be 

 a necessity. Its use 

 is both to set the sur- 

 faces closer together, 

 and, incidentally, to 

 drive out air and 

 prevent blistering during vulcanization. These rollers are 

 made in various sizes and used by the thousand in the manu- 

 facture of air goods, clothing, sundries, mechanical goods, and 

 boots and shoes. One of them, in fact, forms a part of each 

 boot or shoe maker's " kit," and is frequently the private prop- 

 erty of the user. Not every machine shop can suit the needs 

 of the workers in this particular. Hence the cut herewith, 

 which shows a roller that is, perhaps, used more than any other. 

 [Hodgson & Pettis Manufacturing Co., New Haven, Connec- 

 ticut.] 



THE VIDETO CUSHION HEEL. 

 The rubber body of this heel is attached to a leather lift, 

 which renders it unnecessary for the repairer to use cement 



or to level the old heel. 

 All that is required is to re- 

 move the leather heel of 

 the shoe down to the heel 

 seat, and attach the Videto 

 heel with the required num- 

 ber of nails, shaving the 

 leather edge, which com- 

 pletes the task. This heel 

 IS so constructed that it 

 forms an air cushion, which 

 feature tends to prevent 

 slipping. The top piece of 

 leather, >8 inch thick, en- 

 ables the rest of the heel 

 to be made of rubber 

 throughout. There are no cavities in the heel surface to collect 

 and carry dirt. With women's heels is supplied an extra 

 leather lift, which may be used or not as desired, thus filling 

 the requirements of a high or low heel. [Lincoln Rubber Co., 

 Albany building, Boston, Massachusetts.] 



THE "union" HORSESHOE PAD. 

 A RUBBER horseshoe pad has been constructed with alum- 

 inum points, with the purpose that they shall not wear 



smooth, thus preventing the 

 horse from slipping. The ex- 

 perience with some pads has been 

 that as the corrugation wears 

 off the pad, the horse will slip on 

 asphalt, making it more danger- 

 ous for a horse than if he had no 

 pad at all. With the new pads, 

 however, it is stated that as soon 

 as the corrugation commences to 

 wear off there is a new corruga- 

 tion that constantly takes its 

 ] place, thus preventing any slipping. Another recommenda- 

 tion of the new pad is that the rubber compound is especially 

 adapted for durability. The new pads are made in two styles, 

 designated as the " Union Bar " and " Delaware Full " pads, 

 the first of which is illustrated in the accompanying cut. By 

 the use of a special design, these pads can be used for either 

 the front foot or hind foot, so that the blacksmith is not obliged 

 to carry so extensive a stock as otherwise would be necessary 

 [Delaware Rubber Co., No. 244 Market street, Philadelphia. 

 Pennsylvania.] 



